*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
ul,ol{
    list-style: none;
}
a{
    text-decoration: none;
    &:link{
        color: inherit;
    }
    &:visited{
        color: inherit;
    }
}
img{
    display: block;
}
body{
    background-color: #f2f2f2;
    color: #333;
    font-size: 14px;
}
.alert{
    width: 30%;
    position: absolute;
    z-index: 999;
    left: 50%;
    top:5%;
    margin-left: -15%;
    text-align: center;
    display: none;
    line-height: 50px;
    font-weight: 600;
    border-radius: 8px;
}
.alert-success{
    display: block;
    background-color: rgba(32, 150, 8, 0.5);
}
.alert-danger{
    display: block;
    background-color: rgba(182, 7, 7, 0.5);
}